New paper just out in Quantitative Science Studies where we find clear evidence that geographical restrictions on ChatGPT usage have largely failed. Interestingly, OpenAI seems to have taken notice, recently ramping up enforcement efforts. w/ @sunmengyi.bsky.social @innovation.bsky.social

But -- non-CSS wants to maintain their own identity and they became even more different. We have a cool animation for the evolution of CSS evolution-css.netlify.app (6/7)

While after 2014 – CSS started shaping social sciences and the boundary began to fade. During this period, it made different fields closer together, esp a strong alignment between Econ and PoliSci (joint force of CSS and causal inference). (5/7)

acceptance of CSS isn’t natural – CSS first lacked cohesion. In 2005 it started to form its identity (a knowledge cluster) but strongly separated from others (esp. in Sociology – our feeling of early CSS’ big controversy in Sociology and others is empirically correct) (4/7)

as I expected Economists are very slow to react to big data/comp soc sci/AI stuff but they finally joined the trend in 2014. Sociology is currently the most CSS-engaged. CSS is now a big thing in all social sciences! (3/7)

New project with @profjamesevans and my @dsi-uchicago.bsky.social friends on the largest (?) examination (~11 million papers) of how computational social science emerges from -- and shapes -- Econ, Sociology, Psych, and PoliSci. Paper: arxiv.org/abs/2412.08087 A thread: (1/7)

Happy Thanksgiving! This year’s Thanksgiving brings me mixed feelings. I've moved to Chicago from Boston this year and absolutely love the city’s vibrant, culturally-mixed communities. I’m especially grateful that my mom is visiting the U.S. and spending Thanksgiving here with me (1/2)